DataSetObservable

Kotlin |Java

open class DataSetObservable : Observable<DataSetObserver!>

kotlin.Any
↳	android.database.Observable<android.database.DataSetObserver>
	↳	android.database.DataSetObservable

A specialization of Observable for DataSetObserver that provides methods for sending notifications to a list of DataSetObserver objects.

Summary

Public constructors
`DataSetObservable()`

Public methods
open Unit	`notifyChanged()` Invokes `DataSetObserver.onChanged` on each observer.
open Unit	`notifyInvalidated()` Invokes `DataSetObserver.onInvalidated` on each observer.

Inherited functions

From class Observable

Unit

registerObserver(observer: T)

Adds an observer to the list. The observer cannot be null and it must not already be registered.

Unit

unregisterAll()

Remove all registered observers.

Unit

unregisterObserver(observer: T)

Removes a previously registered observer. The observer must not be null and it must already have been registered.

Inherited properties

From class Observable

ArrayList<T>!

mObservers

The list of observers. An observer can be in the list at most once and will never be null.

Public constructors

DataSetObservable

DataSetObservable()

Public methods

notifyChanged

Added in API level 1

open fun notifyChanged(): Unit

Invokes DataSetObserver.onChanged on each observer. Called when the contents of the data set have changed. The recipient will obtain the new contents the next time it queries the data set.

notifyInvalidated

Added in API level 1

open fun notifyInvalidated(): Unit

Invokes DataSetObserver.onInvalidated on each observer. Called when the data set is no longer valid and cannot be queried again, such as when the data set has been closed.